Indo-West Pacific (Japan, Queensland, South Africa).
Fly Point, Port Stephens, New South Wales, Australia. November 1999. PHOTO: Ron Greer.
NOTE: At present I am putting all photos which seem to represent species of Notobryon on this page. It is possible that more than one species is represented here.
Notobryon wardi was first described from Queensland, Australia. Baba (1937) described two more species from Japan, one of which (N. bijecurum}, he said differed from N. wardi mainly in having unequal sized mantle lobes, the anterior being larger than the posterior pair. The significance of this feature is unknown as Baba had only a single specimen, and the only study of multiple specimens (Thompson & Brown, 1981), doesn't address this point. Notobryon is closely related to Scyllaea pelagica and Crosslandia viridis. It differs from both in lacking a median tooth in the radula and from Crosslandia, in having a medio-dorsal posterior crest, which is absent in Corosslandia. Both Scyllaea and Notobryon have a medio-dorsal posterior crest, and both use it when disturbed as a 'paddle', to swim by vigorously waving it from side to side. Like Scyllaea, it has dendritic gill-like processes on the inside of the mantle lobes, especially in larger specimens.
Notobryon feeds on hydroids.
• Baba,K (1937) Two new species of the nudibranchiate genus Notobryon from Sagami Bay, Japan. Venus, The Japanese Journal of Malacology, 7(4, November): 165-170.
• Thompson, T.E. & Brown, G.H. (1981) Biology and relationships of the nudibranch mollusc Notobryon wardi in South Africa, with a review of the Scyllaeidae. Journal of Zoology 194(4): 437-444.
Rudman, W.B., 2000 (May 29) Notobryon wardi Odhner, 1936. [In] Sea Slug Forum. Australian Museum, Sydney. Available from http://www.seaslugforum.net/factsheet/notoward
Re: Scyllaea pelagica? from sthn Queensland
From: Gary Cobb, October 16, 2008
Notobryon ? from nthn Mariana Islands
From: Takao Urasawa, April 17, 2008
Notobryon wardi - caprellid symbiosis?
From: Guido Zsilavecz, July 13, 2007
Radula of Notobryon wardi
From: Bill Rudman, September 14, 2002
Notobryon wardi? from Mexico
From: Ali Hermosillo, September 14, 2002
Notobryon wardi? from west Mexico
From: Alicia Hermosillo, June 29, 2002
Notobryon from Hong Kong
From: Bernard Picton , May 23, 2002
Scyllaeidae from Bahia de Banderas, (2)
From: Alicia Hermosillo, May 18, 2002
Notobryon wardi from the Philippines
From: Erwin Koehler, August 9, 2001
Notobryon bijercurum or bijecurum?
From: Pauline Fiene-Severns, July 24, 2000
Notobryon wardi at Fly Point, Port Stephens
From: Ron Greer, May 30, 2000